AN: Based off of Season 6 Episode 23 and part of Season 7 Episode 1. Thank's to everyone for following, favoriting, and reviewing this story. Here's the next chapter everybody, enjoy. Don't forget to Review. :)

Disclaimer: I do not own Castle or it's characters.

Till Death Do us Part

Three days, that's all there was, just three days until my Aunt becomes Katherine Beckett-Castle. And Castle is going to become my uncle, which is super exciting. Technically, I already feel a part of the Castle family, but them tying the knot, makes it feel more official. Everyone was so giddy about this whole thing, and I didn't blame them, I'm feeling giddy myself.

Aunt Kate and Castle, Uncle Rick, were going to get their marriage license today. Sadly, I couldn't help out because I had school, but everyone pretty much had everything under control. We have an awesome venue, Aunt Kate has a beautiful dress, and Alexis is being a great best man, keeping all the boys in line and getting their tuxedos ready. This was going to be phenomenal, and I really couldn't wait until the most amazing wedding in history, well my history at least.

"You've been smiling like crazy all day. What's got you all happy?" Mike asked as he sat next to me in lunch.

"My aunt and Castle are getting married in a few days," I said.

"Oh yeah… I forgot about that. Bet it's pretty awesome."

"It is. I can't wait for it. It's going to be extraordinary."

"Well, I'm happy for you, Emmy. You've been through a lot."

"Thanks, Mike."

"Think you can snag me something from the wedding?" he asked with a smirk.

"I'll get you a fancy napkin," I said with a chuckle.

He glared at me playfully and said, "Oh, come on. You can do better than that."

"I'm going to behave at this wedding. No stealing, no trouble, just fun family moments."

"All right, I was just kidding anyway. Not much to get at a wedding."

"Well, it's an expensive wedding, you never know what you can snag while the guests are drinking at the open bar."

He chuckled and said, "Yeah, expensive Rolexes to pawn and pick pocketing from filthy rich wallets."

"Yup, then getting caught and being thrown in juvie."

"Very true. Well, have fun at the wedding."

"Thanks, I will."

Eventually, school was over and I headed home excitedly. I practically skipped all the way there, until I reached Castle's door. I went inside and Aunt Kate, Castle, Alexis, and Mrs. Rodgers were gathered around in the living room.

"What's going on?" I asked.

"Your Aunt is married," Castle said.

"Whoa… You're married!?"

"Ugh… it' was just a stupid thing I did when I was nineteen. I didn't think it was real," my aunt groaned.

"The two of them drove to Vegas, had too much to drink, and thought it would be a riot to take a cab to a drive-through wedding chapel," Castle said as I took a seat with everyone.

"You didn't?" Mrs. Rodgers asked.

"She did."

"Yeah, I did. But I never thought that it was for real. And I broke up with the guy a couple weeks later, after I found out he was a compulsive liar, degenerate, and a thief," My aunt said.

"Yes, but not before you tied the knot. And here I thought you were a one-and-done kind of girl."

"Does your father know about this?" Mrs. Rodgers asked.

"I really am gonna be sick," my aunt said.

The doorbell buzzed and Castle said, "And that would be my lawyer."

Castle let the lawyer in and they went to Castle's office to discuss matters further. I couldn't believe Aunt Kate was married and she did it at a drive through chapel in Vegas. Huh, my aunt had an interesting past, and I thought my mom was the interesting one. But I guess my mom was just further off the rails than Aunt Kate. Plus Aunt Kate got her life together and my mom didn't.

Hopefully, Aunt Kate is able to fix this whole debacle or there may not be a wedding, at least not anytime soon.

The next day came and Aunt Kate was going to Willow Creek to go find her husband and get a divorce. I hoped he signed those papers because it was going to be hard to postpone this massive wedding. She was getting ready to leave and I said, "Have fun with your husband."

She glared at me and said, "He's not my husband.'

"Okay…"

"Be good, okay?"

"I'll be good. I hope you get everything settled."

"Believe me, I do too."

"Stay safe, Kate. I hope you get this thing over with, so we can get married in two days," Castle said as he walked into the room.

"I will. Just be ready for the wedding."

"I will. And if you need any help, just give me a call. I'll be there as soon as I can."

"Thanks, Castle, but I think I can handle it."

"Yeah, she should know her husband better than anybody," I said.

Two glares were thrown my way and I smiled guiltily at them.

"I'll see you two later and hopefully with my papers signed, making me a divorced women."

"Well I can't wait for that. I'll see you later."

She kissed him briefly and said, "See you later," she turned to me and said, "Bye, Em. Be good for everyone."

"I will. Bye, Aunt Kate," I said.

She gave a short wave bye to us, and then she was out the door. Castle let out a soft sigh and said, "Do you think this will all work out?"

I shrugged and said, "I don't know, but I sure hope so. As long as she doesn't rekindle an old flame."

Castle choked on the coffee he was drinking and coughed out, "Wha… What!?"

"Don't worry Castle, I bet you're the real catch."

"But… Uh… You don't think?"

I chuckled at him as he babbled confusedly and said, "Don't worry Castle. I think everything is going to be just fine."

I walked off to my room and Castle was still standing in the kitchen, looking flabbergasted and confused. I'm sure aunt Kate wouldn't go after an old flame and the way they described him, he didn't sound like that great of a guy anyway.

That night, Ryan and Esposito came over to try on their tuxedos. I was sitting on Castle's bed, watching Castle and Esposito fixing their suits.

"Which one?" Alexis asked Esposito as she showed him two bowties.

"The easy one, which is this one. Thank you," he said as he picked the tie on his left and then turned to Castle as he put it on, "Any news from Beckett?"

"Uh, she texted me a couple hours ago said she'd found him, but I haven't heard from her since," Castle said as he fixed one of his cuffs.

"Maybe they're catching up."

"Sure…. No, sure… They got a lot in common. She can talk about all the people she's put in prison, and he can talk about all the people he's met in prison. "

Ryan came out of Castle's bathroom and said, "Um, Alexis, I haven't gained this much daddy weight."

We all chuckled at the very tight and short fitting suit on Ryan, but Alexis looked mortified. She went up to him and said, "That can't be right. I double-checked the size 10 times."

"Hey, maybe you finally hit that growth spurt you've been waiting on, bro," Esposito said.

Castle's phone started ringing and he said, "Oh. And that's her."

Castle left the room and closed the door behind him, going to talk to Aunt Kate privately. Alexis was still trying to figure out what happened with Ryan's tux and Esposito and I were still chuckling at the sight before us. I just hope aunt Kate comes back soon and this wedding will go off without a hitch.

I got woken up in the middle of the night and apparently we lost our venue for the wedding. The way things are going right now, I have a horrible feeling about this whole thing. Maybe Aunt Kate and Castle aren't meant to get married.

"We lost our venue? How is that even possible?!" Alexis said as she went down stairs.

Mrs. Rodgers and I followed behind her and Castle said, "They had a circus party there tonight with some first-time fire breathers. Now our rooftop venue does not have a floor."

"This is a disaster."

"No place to get married and no one to get married to. I think "disaster" is an understatement."

"So-called "disaster" is merely opportunity in disguise. We'll just find another place to hold the wedding," Mrs. Rodgers said.

"Are you kidding? Where are we gonna find a venue in Manhattan that holds 300 people in less than two days?"

"Ooh! We already have one. Not in Manhattan. We can move the whole party to our house in the Hamptons," Alexis said happily.

"Yes. Yes! We've held larger parties than this out there."

"We rent luxury buses to shuttle our guests and pay the vendors' transportation costs."

"Brilliant! I will call the housekeeper first thing in the morning and have them start getting the place ready," Mrs. Rodgers said.

"You really think we can pull this off?" Castle asked.

"Oh, please! I once staged "A Chorus Line" on a subway platform when our company lost its space. I think I can move a wedding. Alexis and Emily will help with everything. You just make sure Katherine finds that deadbeat husband of hers. Yes."

Castle left, going to help Aunt Kate find her missing husband, and we went off to bed, getting ready for a rough day ahead of us to prepare for a wedding in the Hamptons.

The next day came around and Mrs. Rodgers, Alexis, and I were trying to get the Hamptons ready for the wedding. Alexis and Mrs. Rodgers were on the phone the whole morning, calling guests, transportation, the Hamptons maid, caterers, and everything else you'd find at weddings.

As soon as they finished calling everyone they needed to, we headed to the Hamptons to help prepare for the wedding. It was coming along great and it was beautiful. I couldn't keep my eyes off the ocean as it came to shore and then receded back, over and over again. I've never actually been to the beach before and now that Aunt Kate is marrying Castle, maybe we'll come here a lot to spend time together.

"Isn't it beautiful?" Alexis said as she came over to me.

"Yeah," I said.

"Maybe we can go to the beach sometime. Now that you're going to be my little cousin."

"That would be great."

"Come help me with a few things."

"Okay," I said with a nod.

I took one final glance at the ocean and then went off to help Alexis.

It was finally the day of the wedding and Aunt Kate got everything figured out. She told me all about her crazy time in Willow Creek, whilst trying to get the divorce papers signed. She also told me how her boyfriend got kidnapped by some mobster and how they ran into a biker gang, who potentially saved them from the mobster because they got the reward money for turning him in. Sounds like a crazy two days to me.

Thankfully it's all over and time is running down to the moment we've all been waiting for, a beautiful wedding. I was getting dressed into my light blue dress and I slipped my white flats on to my feet. I was so happy for this day, I couldn't stop grinning from ear to ear. I tucked a stray piece of hair behind my ear as I looked at my reflection in the mirror. I gave myself one last big grin before I skipped off to the room my aunt was occupying.

I went inside and she was just getting off the phone. She looked at me and smiled wide, "You look so pretty, Em."

"Thank you, Aunt Kate. You look beautiful," I said as I looked at her in her stunning wedding dress.

Aunt Kate pulled me to her and gave me a big hug. We both held each other close and she said, "I can't believe this day has finally come."

I looked up at her as we hugged and said, "Me either, but I'm happy for you two. This is the best day ever."

"Yes it is. I'm glad you're here to share this day with me."

"Me too, I wouldn't want to miss this. I love you, Aunt Kate."

"I love you too, Em."

"Come on, don't make us cry. I don't want my make up to run," I heard Lanie say from behind me.

I turned around and Mrs. Rodgers, Alexis, and Lanie were standing in the doorway with small smiles. Alexis was wearing a dark purple suit, Lanie was wearing an emerald green dress, and Mrs. Rodgers was wearing a multicolor dress.

"You two look so pretty," Alexis said with a smile.

"Yes they do. It's like a picture perfect moment," Mrs. Rodgers said.

"Yes, we're going to have to take lots of pictures at the wedding and reception," Lanie said.

My aunt chuckled a bit and said, "Now all we have to do is wait for Castle."

We were all waiting in the bedroom, but Castle still wasn't here yet.

"It's been an hour already, and the natives down there are getting restless," Lanie said.

"Where do you think he is?" Mrs. Rodgers asked.

"I don't know. When I spoke to him last, he said he was less than 20 minutes away," my aunt said as she tried to call him, "Straight to voice-mail."

Her phone started ringing and she picked it up immediately, "Hello? Yes. This is she."

My aunt turned back with her eyes wide and soon we were all leaving the wedding venue. We all drove in separate vehicles and I was with Alexis and Mrs. Rodgers. We got to an accident site and my aunt looked distraught at the sight before her.

"Oh, my God," Mrs. Rodgers said, looking at Castle's car engulfed in flames.

Alexis held me close to her as I watched my aunt drop to her knees by Castle's car. I didn't know what to do, I wanted to cry, I wanted to scream, and I wanted to comfort my aunt, but all I did was stand there, watching from afar. It was horrible and I couldn't believe this. We were finally going to be happy and then something happens, ripping it all away.

The firemen came and put out the fire in Castle's car quickly. My aunt went over to look in and she said, "It's empty. He's not here. He's not in the car."

We were all relieved, but if he's not here, where is he, or who has him.

My aunt came up the small embankment and Esposito asked, "You sure he's not in the car?"

"Even with a fire that hot, there'd still be a body. He's gotta be nearby," Aunt Kate said.

Mrs. Rodgers, Alexis, and I went up to her and Mrs. Rodgers asked, "You really think he is here?"

"He has to be. We have to start a search."

"We could use more men," Ryan said.

"Sergeant!" she called and a man came over quickly, "I'm Detective Beckett, NYPD. The man that was in that car is one of our own. We need to scrub every inch of this area."

"I'll get my men on it," he said.

"You have search and rescue dogs?" Ryan asked.

"I'll call them in."

"Okay."

"I need to help them," my aunt said.

"You're no use to anyone dressed like that. We'll get started here, you go change," Esposito said.

"Come on, let's get you into some other clothes," Mrs. Rodgers said as she grabbed my aunt's hand.

"Okay, I'll be right back," Aunt Kate said.

We left the accident scene and headed back to the house in the Hamptons. We got dressed in our regular clothes and as soon as Aunt Kate was done, she left to go help out in the investigation.

Mrs. Rodgers, Alexis, and I were all sitting around at Castle's apartment, hoping the precinct would get to the bottom of this whole thing. This is one of the most horrible things that's happened in the past three and a half years that I've been a part of this whole family.

"He'll come back," Alexis said sadly.

"Of course he will, darling. Your father will be home before you know it," Mrs. Rodgers said.

A few hours later, Aunt Kate came by with some photos she got from surveillance cameras.

"And these images were taken after the accident? The car fire?" Alexis asked as she flipped through the photos.

"Yes," Aunt Kate said with a small nod.

"So he's alive. He's not being held captive by God-knows-who," Mrs. Rodgers said.

"Wait, are you saying Dad was run off the road by an SUV, and after that, he paid to have it crushed?" Alexis asked.

"It looks that way, yeah," my aunt said.

"Well, that's ridiculous. Why on earth would he do such a thing?" Mrs. Rodgers asked.

"Was he going through anything that I didn't know about?"

"Like what?"

"Pressure that he was under that he kept to himself."

"Of course not. Right, Gram?" Alexis questioned.

"No, no, no, no. I would have noticed," Mrs. Rodgers said, shaking her head vigorously.

"And what about the wedding? Did he have any misgivings?" Aunt Kate asked.

"Misgivings? Katherine… that was the farthest thing from his mind. He couldn't wait to be married to you."

"You don't think he'd just walk away, do you?" Alexis asked,

"No," Aunt Kate said with a sad smile.

"Then what's going on here?" Mrs. Rodgers asked.

"I don't know. But there's gotta be another explanation."

Aunt Kate took the pictures and left the apartment. We sighed and went back to waiting, just like we've been doing.

It was late at night and I couldn't sleep. How can you sleep when your whole world's been flipped upside down? I went downstairs and I heard my aunt Kate sniffling softly as she looked through papers in the living room. I slowly walked up behind her and watched her shuffle through case files, photos, and papers pertaining to Castle's disappearance.

She put her head in her hands and cried softly. I haven't seen her this emotional since this whole disaster went down and I guess it was finally hitting her. I sat next to her and I felt her tense up, not knowing that I was there. She looked over at me with glossy eyes and all I did was embrace her into a tight hug. She kissed my forehead and we stayed there on the couch, holding each other closely.

I didn't know if we were going to find Castle or if everything was going to be all right, but as long as I have my family, everything will be okay.